Preparing Cell Lysates

Revision as of 00:32, 27 May 2009 by Davebridges (Talk | contribs) (Basic Protocol)

Revision as of 00:32, 27 May 2009 by Davebridges (Talk | contribs) (Basic Protocol)

Materials

RIPA Buffer (for 10mL lysis buffer)

Final Concentration per 10 mL Stock
Tris pH7.4 50mM 500uL 1M
Na Deoxycholate 0.25% 250uL 10%
NP-40 1% 1mL 10%
NaCl 150mM 375uL 4M
EDTA 1mM 20uL 0.5M
NaVO3 1mM 100uL 1M
NaF 5mM 100uL 250mM
NaPPi 25 mM 1 mL 500mM

Basic Protocol

  1. Stimulate cells if necessary
  2. Wash cells 2x1mL with ice cold PBS -/- and aspirate
  3. Add 200uL RIPA buffer and scrape cells
  4. Pipet into cold eppendorf tubes
  5. rotate end over end for 30 minutes at 4C to lyse
  6. Centrifuge 10 min at 13,000 RPM to clarify
  7. Transfer 150uL of lysate to fresh tube and add 150uL 2XSDS
  8. Load gel